Sensitive information disclosure via undisclosed flaw
Published Sep 12, 2023 · Updated Oct 30, 2025
Microsoft Outlook information disclosure vulnerability allows remote attackers to read sensitive information via unspecified vectors. The vendor has not publicly described the faulty Outlook component or operation that exposes the data. Exploitation requires no authentication or user interaction according to Microsoft’s assessment, and reported impact is limited to confidentiality without integrity or availability effects.
Summary
What happened
Microsoft Outlook information disclosure vulnerability allows remote attackers to read sensitive information via unspecified vectors. The vendor has not publicly described the faulty Outlook component or operation that exposes the data. Exploitation requires no authentication or user interaction according to Microsoft’s assessment, and reported impact is limited to confidentiality without integrity or availability effects.
The record
- CVE
- CVE-2023-36763
- Published
- Sep 12, 2023
- Updated
- Oct 30, 2025
- Vendor
- Microsoft
- Product
- Microsoft Office 2019
- Classifications
- CWE-200
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Sep 12, 2023CVE publishedPublication date reported by the CVE source.
- Oct 30, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=19.0.0 <https://aka.ms/OfficeSecurityReleases
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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